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Finding the Fourth Proportional to 331,624.20, 496,658.70 and 225,870.60

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Solution

The fourth proportional to 331,624.20, 496,658.70 and 225,870.60 is: 338,276.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,624.20 : 496,658.70 = 225,870.60 : x
  2. Step 2: Convert to fraction form
    331,624.20/496,658.70 = 225,870.60/x
  3. Step 3: Cross multiply
    331,624.20x = 496,658.70 × 225,870.60
  4. Step 4: Simplify right side
    331,624.20x = 112,180,598,564.22
  5. Step 5: Solve for x
    x = 112,180,598,564.22/331,624.20
  6. Step 6: Final answer
    x = 338,276.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.